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【多选题】
以下选项在学生学习过程中能遇到的且表述正确的有()A.
每个章节的任务点都完成后，会解锁成绿色圆圈
B.
学生在看课程视频时有防脱拽、防窗口切换限制
C.
结课后的证书可以在“统计（进度）”中下载
D.
在进度盲排中可以看到同学名字，并有自己的学习排名
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反馈参考答案：
举一反三
【单选题】My father kept his promise he would buy me a new computer.
A.
if
B.
that
C.
how
D.
why
【单选题】A: Daivd said he bought a new BMW for 5,000! B: ______ sounds pretty cheap to me! A: Well, that's what he said.
A.
Are you sure?
B.
Come to think of it.
C.
Do you think so?
D.
Is he crazy?
【单选题】I can’t imagine why he didn’t stick to his promise____he would do his best to buy me a new bike.
A.
which
B.
that
C.
what
D.
as
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